[Bug] 'class rl::math::KdtreeBoundingBoxNearestNeighbors<MetricT>' has no member named 'mean','samples','mean' [-Wtemplate-body]

[kongyuanchao]

Hi Dear Author,

When compiling Robotic Library on Windows11 using GCC 14.2.0 and Cmake 4.0.2, I encountered a build error related to KdtreeBoundingBoxNearestNeighbors.h.

Analysis
I noticed that KdtreeBoundingBoxNearestNeighbors seems to refer to something undefined — possibly a missing var or template definition. However, KdtreeNearestNeighbors defines it properly.

Suggestions
Please check whether there’s a missing include or incorrect inheritance chain for KdtreeBoundingBoxNearestNeighbors.

Let me know if a patch or PR would be helpful — I’m happy to contribute.

[gu002913]

I got the same error on macOS 15.5 .

KdtreeBoundingBoxNearestNeighbors.h:252:16: error: no member named 'mean' in 'KdtreeBoundingBoxNearestNeighbors<MetricT>'
  252 |                                 swap(this->mean, other.mean);
      |                                      ~~~~  ^

KdtreeBoundingBoxNearestNeighbors.h:254:16: error: no member named 'samples' in 'KdtreeBoundingBoxNearestNeighbors<MetricT>'
  254 |                                 swap(this->samples, other.samples);
      |                                      ~~~~  ^

KdtreeBoundingBoxNearestNeighbors.h:257:27: error: no member named 'var' in 'KdtreeBoundingBoxNearestNeighbors<MetricT>'
  257 |                                 swap(this->var, other.var);
      |                                                 ~~~~~ ^